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Analysis of Time Domain Combined Field Integral Equation for Electromagnetic Scattering from Dielectric Objects
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- Authors
- Baek Ho Jung, Young-Hwan Lee, Tapan Kumar Sarkar
- Issue Date
- 2007-06
- Citation
- IEEE Antennas and Propagation Society International Symposium (AP-S) 2007, pp.4561-4564
- Language
- English
- Type
- Conference Paper
- Abstract
- In this work, we present a time domain combined field integral equation (TD- CFIE) formulation to analyze the transient electromagnetic response from three- dimensional dielectric objects. The marching-on in time (MOT) technique is extensively employed to analyze the transient scattering from conducting and dielectric objects using time domain integral equations. A serious drawback of this algorithm is the occurrence of late-time instabilities in the form of high frequency oscillation. The solution method in this paper is based on the method of moments (MoM) that involves separate spatial and temporal testing procedures. A set of the RWG function is used for spatial expansion of the equivalent electric and magnetic current densities and a combination of RWG function and its orthogonal component is used as spatial testing.